i'm gonna bring my truck in to have the rear axle seal fixed under warranty. from what i've read, they're supposed to replace the the whole shaft assembly with the seal, correct? mine is a big tow and offroad package truck.. are the axle shafts any different from non-BT trucks? i know the rear end is geared differently on a BT truck than a non-BT truck. anybody know off hand if i need a particular or specific shaft assembly? something different from non-BT or OR packaged trucks. thanks...